Biogas is also known as ______________.

Correct option is C

The correct answer is: (c) Gobar gas.

Biogas is commonly referred to as Gobar gas in rural areas, particularly in India. It is a renewable source of energy produced from the anaerobic decomposition of organic waste such as cow dung (gobar), agricultural residue, and kitchen waste.

Key Features of Biogas:

Composition:

• The primary components of biogas are:

• Methane (CH₄): ~50-75%

• Carbon dioxide (CO₂): ~25-50%

• Trace amounts of hydrogen sulfide (H₂S) and water vapor.

Production Process:

• Biogas is generated in biogas plants through the anaerobic digestion of organic matter by microorganisms.

Uses:

• As a fuel for cooking and heating.

• To generate electricity in small-scale power plants.

• As a transport fuel after purification (compressed biogas).

Advantages:

• Reduces dependency on fossil fuels.

• Minimizes greenhouse gas emissions.

• Provides a sustainable waste management solution.

Additional Information:

• Fuel gas:

• While biogas can be classified as a type of fuel gas, it is more specifically known as Gobar gas in common usage.

• Ethane gas:

• Incorrect, as ethane is a hydrocarbon that is distinct from the methane-dominated biogas.

• Petroleum gas:

• Incorrect, as petroleum gas (liquefied petroleum gas or LPG) is derived from crude oil, not organic waste.